Application of roof bolting to reduce water inflow into mine workings during the crossing of tectonic faults

In this work, the problem of water inflow reduction in Ukrainian coal mines, which are distinguished by difficult hydrogeological conditions, was considered. A numerical study change into a mine working when it crosses tectonic fault carried out. The cases permanent supported frame supports and roof bolts were calculation stress fields, zones with inelastic deformations coefficients permeability, depend on state takes account natural permeability rocks, performed. results calculating pressure all considered presented article. Analysis calculated data showed that disturbed area, covered water-bearing ricks, formed support. Within can move towards contour working. filtration host rocks increases significantly face approaches disturbance. flow rate reaches critical values. use bolting restrains unloading boundary from rock keeps them triaxially compressed state. value decreases its technological component. different areas intersection disturbance, is 3-8 times less than working, supports. Therefore, allows not only to keep stable state, but also reduce inflows at complicated conditions.